Welcome to MAC-ISA

The MAC-ISA is a non-profit professional organization of arborists, urban foresters, and others involved in the caring of trees.Our membership is made up of people from commercial, utility municipal sectors, educational institutions and other green industry related fields.Our mission is to promote a culture of safety while fostering education and research that supports the care and benefits of trees. Our chapter area includes District of Columbia, Maryland, Virginia and West Virginia.

News and Events

Congratulations to our own International Tree Climbing Competition Champion, James Earhart! Way to go James!! MAC-ISA is immensely proud of you! Watch a video of the announcement. http://www.youtube.com/watch?v=8uTmYnQkA38Jocelyn Lohse came in 7th overall in the womens competition. In addition, James and Jocelyn got third place in the chapter team award. Congratulations to both of you! For a list of event winners go to www.isa-arbor.org.

MAC-ISATRAQ courses for 2015 in Baltimore, November 4-6 still has a few spaces open. Click herefor more information, dates and registration form.

2015 TOUR DES TREES Registration opens January 12. Cycle the Sunshine State this Fall with the STIHL Tour des Trees from Orlando to Ft. Lauderdale, October 25 - 31, 2015. Registration opens Jan 12 at www.stihltourdestrees.org.Find out more about the tour byclicking here.

Bonnie Appleton Memorial Fund Update: We have now raised almost 50% of our goal! HELP US REACH OUR FUNDRAISING GOAL OF $100,000to endow this scholarship. We need your help to finish our goal! Please donate. Read more under ourTREE Fund link.

Upgraded ISA on-line Learning Center is now live! Click here to see the updated on-line Learning Center where you can take courses and earn CEUs.